Yeh it's the speed camera alerts that are illegal ,,,,,remember there's quite a few things you must have in the car in France and its an offence not to have them... Reflective vest for all passengers ,,, warning triangle ,, two yes two breathalysers ,,, gb stickers and them things you stick on your lights,, so they don't blind the frog drivers ...
Also why you using the tolls,,, there fecking expensive. 115 euro to drive from Calais to denia in Spain,,, avoiding the tolls this year I can tell ya.